Description
Contiki-NG is an open-source, cross-platform operating system for IoT devices. In affected versions it is possible to cause a buffer overflow when copying an IPv6 address prefix in the RPL-Classic implementation in Contiki-NG. In order to trigger the vulnerability, the Contiki-NG system must have joined an RPL DODAG. After that, an attacker can send a DAO packet with a Target option that contains a prefix length larger than 128 bits. The problem was fixed after the release of Contiki-NG 4.7. Users unable to upgrade may apply the patch in Contiki-NG PR #1615.
References (4)
Core 4
Core References
Third Party Advisory x_refsource_confirm
https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-jqjf-v7v9-xp6w
Patch, Third Party Advisory x_refsource_misc
https://github.com/contiki-ng/contiki-ng/pull/1615
Patch, Third Party Advisory x_refsource_misc
https://github.com/contiki-ng/contiki-ng/pull/1615/commits/587ae59956e00316fd44fd7072ac3a6a07b4b20f
Third Party Advisory x_refsource_misc
https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8
Scores
CVSS v3
8.1
EPSS
0.0073
EPSS Percentile
72.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-120
Status
published
Products (1)
contiki-ng/contiki-ng
< 4.8
Published
Aug 04, 2022
Tracked Since
Feb 18, 2026